The UMI rear control arm kit for 2005–2010 Ford Mustang S197 replaces flex-prone factory arms with a stronger upper control arm and boxed lower arms to improve traction and handling. Built from 1/8" wall USA steel tubing with MIG welds and a high-gloss powder coat, the kit is assembled with greaseable polyurethane bushings and installs bolt‑in using factory hardware. An optional stepped spacer kit reduces the chassis hole from 16mm to 14mm to eliminate rear suspension noise when used with the factory upper mount.
UMI Performance 05-10 Ford Mustang Rear Control Arm Kit